baber/WOPTO huggingface dataset:
Patent GB-821246-A (GB)
Title: Improvements in or relating to colour television system
IPC: H04N11/18
Filed: 1957-05-20
Abstract: 821,246. Television. FRANCE, H. G. DE. May 20, 1957 [May 25, 1956], No. 15976/57. Drawings to Specification. Class 40 (3). In a colour television system in which a luminance signal is transmitted simultaneously with the low-frequencies of alternate ones of two different colour signals during alternate lines the receiver includes a delay device which delays the sequentially transmitted colour signals for the duration of one line period such that, by means of a switching device the latter signals are simultaneously supplied to a matrixing circuit from which three simultaneous type primary colour signals are derived for application to the colour picture reproducing device. The colour signals, which may comprise the low-frequency components of the red and blue signals or may consist of the "I " and "Q" components of the N.T.S.C. system, are transmitted by means of an auxiliary carrier wave situated either inside or outside of the frequency band occupied by the luminance signals, the latter being suitable for the production of black/white pictures in monochrome receivers. The delay device may be included in a portion of the receiver colour channel operating at, video frequency, auxiliary carrier frequency or intermediate frequency. The auxiliary carrier is negatively modulated by the colour signals and colour synchronization obtained by arrangements of the kind described in Specification 792,863.
Patent GB-746188-A (GB)
Title: Improvements in and relating to ball point pens
Inventor: STERN KENNETH CHARLES
IPC: B43K7/06
Filed: 1953-06-10
Abstract: 746,188. Reservoir pens. HARTLEY, REECE & CO., Ltd. Dec. 24, 1953 [June 10, 1953], No. 16033/53. Class 146(3) A ball-point pen comprises a transparent ink reservoir 4 secured to a ball-point tip 6, and a two-part barrel, the front part 1 of the barrel being transparent and detachable from the tip and reservoir. The rear part 3 of the barrel is attached to the part 1 by screw-threads 2, and may be of opaque plastic material. The tip 6 is milled at 7, is a press fit in the end of the part 1 and may be sealed to the part 1 by suitable material. The inner end of the part 1 may be closed, apart from an air-hole, by a plug of plastic or wax-like material. The reservoir 4 may be of capillary dimensions or larger, as shown, and provided with a plug follower resting on the ink column. In a modification, the tip 6 has screw-thread engagement with the end of the part 1, and the reservoir 4 extends substantially the full length of the barrel. Reference has been directed by the Comptroller to Specification 573,747.
Patent GB-775109-A (GB)
Title: Improvements in and relating to gas-cooled dynamo-electric machines
Inventor: HUNT ALBERT
IPC: H02K9/00
Filed: 1954-06-01
Abstract: 775,109. Cooling dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd. April 7, 1955 [June 1, 1954], No. 16185/54. Class 35. A gas-filled machine has tubular terminals with inlet and outlet gas apertures communicating directly with high and low gas pressure compartments of the machine, the terminal extending through a low-pressure compartment formed by terminal casing 15<SP>1</SP>e and insulating separator 166 into a high-pressure compartment 154. As shown, gas from the delivery side of the fan on the machine shaft passes from space 154 through the tube 117 and flows over the outer periphery of this tube before returning to terminal casing 151e in communication by tube 169 with the inlet side of the fan.
Patent GB-606509-A (GB)
Title: Improvements in the manufacture of glass
IPC: C03C3/247
Filed: 1945-06-26
Abstract: 606,509. Optical glass. KODAK, Ltd. (Eastman Kodak Co., Sun, K. H., and Huggins, M. L.). June 26, 1945, No. 16272. Drawings to Specification. [Class 56] An optical glass is made from a fused batch of inorganic compounds at least 60 per cent by weight being fluorides including beryllium fluoride in amount between 12 and 50 per cent by weight, one or more relatively insoluble divalent metal fluorides and not more than 25 per cent by weight or 26 mol. per cent, if any, alkali metal fluoride. AlF 3  may be present, and other fluorides specified include those of La, Mg, Ca, Sr, Ba, divalent Pb, Ce, Th, Y, Pr, Nd, Sm, trivalent Bi, In and Ga. The alkali metal fluorides, if present, may be those of Na, K, Rb or Cs. The batch may also contain compounds of oxygen, sulphur, and phosphorus within specified limits. Many examples are given and their optical properties tabulated and discussed, the relationships between the refractive index for the D-line and the Abbe value, the blue partial dispersion ratio and the Abbe value, and the red partial dispersion ratio and the Abbe value being referred to, particularly in their application to lenses and lens systems. The glasses are generally colourless, but those containing Pr, Nd and Sm are, respectively, yellowish-green, pink and pale amber. Specification 462,304 is referred to.
Patent GB-312583-A (GB)
Title: Improvements in petroleum wick burners
IPC: F23D3/00
Filed: 1929-05-27
Abstract: 312,583. Lampen-und Metallwaren- Fabriken R. Ditmar Geb. Br³nner Akt.-Ges. May 26, 1928, [Convention date]. Wick burners, annular, ftat - flame, solidflame, and blue-flame. -In a round wick burner in which a blue flame is obtained by surrounding the flame with a perforated combustion chamber d, the wick is surrounded by a cap a or a<2> which may either be conical as shown in Fig. 1 or formed with a constriction a' as shown in Fig. 2 and is provided with holes f to allow additional air sweeping past the wick tube to pass to the flame. In Fig. 1 the top of the cap rests on the wick and is formed with an opening a<1>. The cap shown in Fig. 2 may be provided with a similar, covering part or means may be provided for limiting the movement of the wick. The invention may also be applied to flat and annular wick burners, the caps in the case of annular wick burners consisting of two concentric conical or cylindrical rings arranged one on each side of the wick and supporting the outer and inner walls of the combustion chamber.
Patent GB-892819-A (GB)
Title: Block copolymers and their production
IPC: C08G77/46
Filed: 1958-05-22
Abstract: A copolymer comprises at least one polysiloxane block comprising at least 2 Si atoms each bonded to 3 oxygen atoms and to a monovalent hydrocarbon radical (preferably a methyl, ethyl, phenyl or vinyl radical), and at least one polyoxyalkylene block comprising units of the formula (-CnH2nO-)z, wherein n is 2, 3 or 4 and z is an integer of at least 5.  The copolymers can be made (i) by condensing an alkoxypolysiloxane with a hydroxyoxyalkylene polymer, e.g. in a solvent such as toluene or xylene and in the presence of a condensation catalyst such as an organic acid or alkali metal silanolate or siloxanolate, and removing the alkanol formed, with or without subsequent removal of the catalyst in known manner; (ii) by condensing the hydroxy oxyalkylene polymer with a monohydrocarbon trialkoxysilane and equilibrating the product with a cyclic diorganosiloxane; and (iii) by reacting a diorganosiloxane containing at least 2 units of the formula <FORM:0892819/IV (a)/1> with the hydroxyoxyalkylene polymer in the presence of a catalyst, e.g. piperidine, with evolution of hydrogen.  Examples are given. The starting polyoxyalkylene diols are described in Specifications 601,604, 616,256 and 651,712, and the starting alkoxysilanes may be made by reacting an organopolysiloxane, e.g. a cyclic trimer or tetramer, with a trialkoxysilane.  Uses: as emulsifying agents for water-silicone and water-organic solvent mixtures; as glass sizes; lubricants; and as antistatic agents for textile fibres.
Patent GB-1141017-A (GB)
Title: Inserter and retainer for suppositories
IPC: A61M31/00
Filed: 1966-04-14
Abstract: 1,141,017. Device for inserting a suppository. M. G. GORDON. 14 April, 1966 [15 April, 1965], No. 16471/66. Heading A5R. A device for inserting a suppository into the anal canal comprises a base which is provided with an integrally moulded upstanding stem, the end of the stem remote from the base being recessed to receive an end portion of the suppository; the base has a sheet-like configuration and is adapted to engage the buttocks to retain the stem and suppository in position after insertion. As illustrated in Figures 2 and 3, the base of the device comprises an elongated strip 8 which is arcuate to conform to the curvature of the body of the user and which has rounded edges 12; merging into the strip at a location intermediate its length at curved portions 9' is a stem 9 provided with a recess 10 which has a smoothed edge 11 and which is adapted to receive a conventional suppository 13, optionally provided with a head 14, moulded from a wax-like base in which is embedded a medicament. Figure 5 (not shown) illustrates a device of modified construction comprising a stem which extends from the centre of a circular base. The base and the stem may be integrally moulded of rubber or of plastics material.
Patent GB-675673-A (GB)
Title: Improvements in or relating to the manufacture of artificial resins, and to coating compositions, particularly for coating regenerated cellulose films
Inventor: BERRY WILLIAM
IPC: C08J7/052
Filed: 1949-06-21
Abstract: In making an artificial resin, a rosin is heated with an aliphatic polyhydric alcohol at 150 DEG  to 200 DEG  C. for 1/2 to 2 hours and the resulting product is heated at 200 DEG  to 300 DEG  C. for 2 to 10 hours with a saturated aliphatic dicarboxylic acid having a molecular weight of 104 to 234, the proportion, in parts by weight, of rosin to polyhydric alcohol being from 100 : 10 to 100 : 30 and that of rosin to dicarboxylic acid being from 100 : 10 to 100 : 50. The term "rosin" includes fossil rosin (copal), wood rosin, abietic acid, hydrogenated rosin, heat-polymerized rosin, a rosin derivative known as "Polypale" (Registered Trade Mark) and modified rosin, i.e. a purified rosin.  Polyhydric alcohols specified are ethylene glycol, glycerol, pentaerythritol or mixtures thereof which may be adventitious, such as that obtained by the reduction of sugars. Dicarboxylic acids specified are malonic, glutaric and succinic acids, the last two may be used in the form of acid or anhydride or a mixture of acid and anhydride. An acidic condensing agent, e.g. phosphoric acid, may be used for condensing the acid with the esterified rosin, thus phosphoric acid may be added to the melted rosin ester and the mixture added to the dicarboxylic acid; magnesium carbonate may be added to the resulting mixture.  The resins may be used in admixture with nitrocellulose, one or more waxes such as paraffin, bees, carnauba and candelilla waxes, and a volatile organic solvent or solvent mixture, e.g. ethyl acetate alone or in admixture with toluene, as a moisture-proofing coating composition for sheets or films of organic material such as films of regenerated cellulose, lowly substituted cellulose ethers or esters, gelatine, alginic derivatives, paper, parchment and glassine.  Plasticizers for nitrocellulose, e.g. dibutyl phthalate, tricresyl phosphate and dicyclohexyl phthalate, may be included in the coating compositions. In examples: (1) a resin obtained from polymerized rosin, glycerol and succinic acid was mixed with nitrocellulose, dibutyl phthalate, dicyclohexyl phthalate, paraffin wax, toluene and ethyl acetate and the resulting composition was applied to a regenerated cellulose film; the resin obtained from (ii) polymerized rosin, glycerol and glutaric acid, and the resins obtained by using (iii) adipic acid, (iv) suberic acid, (v) sebacic acid, instead of succinic acid in example (1), were used to replace the resin in the coating composition of example (i). Specifications 485,641 and 555,084 are referred to.
Patent GB-614454-A (GB)
Title: Improvements in thermionic valve amplifiers for producing balanced sawtooth currents or voltages
IPC: H03K6/02
Filed: 1946-05-31
Abstract: 614,454. Saw-tooth amplifying circuits. PHILIPS LAMPS, Ltd. May 31, 1946, No. 16536. Convention date, June 1, 1945. [Class 40 (vi)] A circuit for producing a balanced saw-tooth voltage or current from an unbalanced non- linear saw-tooth voltage comprises a paraphase push-pull amplifier, both amplifier valves having curved characteristics to compensate for non-linearity in the control voltage and the valve to which the output of the first stage is fed, having in addition' a negative feedback circuit associated with it. In the Figure, a non-linear saw-tooth voltage produced across capacitor 1 by charging it through resistor 2 and discharging through the gas-filled valve 4, is fed to valve 7, the exponential charging stroke of the voltage, Fig. 2a (not shown), being compensated by curvature in the characteristic of the valve. Output voltage from valve 7 is fed to the grid of valve 8 via the potentiometer 16, 10, negative feedback being produced in this stage by means of the screen grid resistor 17 to compensate for the non-linearity which would otherwise be produced in the output waveform.
Patent GB-633742-A (GB)
Title: Improvements in or relating to compressor systems
IPC: F04B49/20
Filed: 1947-06-23
Abstract: 633,742. Gas compressors. INGERSOLL RAND CO. June 23, 1947, No. 16556. Convention date, Oct. 12, 1944. [Class 8(i)] A compressed air supply system for supplying a tool 15, comprises a pump 10 driven by an internal combustion engine 11, the pump having an unloading valve 16 sensitive to the flow of compressed air to the tool 15 and the engine having a pressure sensitive speed regulator 12. The unloader valve 16 comprises a casing 115 having a cylindrical bore 17 containing a piston 18, the opposite faces communicating with an inlet pipe 14 and an outlet pipe 14a interconnected by a restricted opening 19 in the cylinder bore 17. A piston 21 attached to the piston 18 and operating in a cylinder 20 controls an exhaust port 22. A spring 25 biasses the pistons to open the port 20 when flow through the passage 19 ceases. The speed regulator 12 comprises a diaphragm piston subjected to pressure from the compressor through a pipe 34 and connected through linkage to the engine throttle valve.
Patent GB-1470516-A (GB)
Title: Mechanical handling apparatus
IPC: B65G49/08
Filed: 1974-04-02
Abstract: 1470516 Rotating loads; stacking slabs CHARCON PRODUCTS Ltd 2 April 1974 [6 April 1973] 16561/73 Headings B8H and B8C Concrete slabs 6 are individually deposited in a horizontal orientation on a platform 12 by a vacuum head 5 which traverses to and from a press (not shown) in which slabs are formed, and after receiving a slab 6 the platform 12 is rotated anti-clockwise about a horizontal axis defined by a shaft 8 so that the slab 6 is deposited in a vertical orientation on a pallet 10 located on a conveyer 9, the slab 6 being retained on the platform 12 during the rotation of the latter by means of fingers 14, and just before the platform 12 reaches its lowermost vertical position the slab 6 carried thereon contacts the pallet 10 due to the fingers 14 passing through recesses formed in the pallet support surface, and the platform 12 continues to move downwardly for a short distance to its lowermost position so that the fingers 14 move away from the lower edge of the slab, and the fingers 14 are then retracted under the edge of the platform 12 by means of a pneumatic ram 15 so that the platform 12 can be swung back to its horizontal position, and the conveyer 9 is then indexed forward by one step so that another slab 6 can be deposited on the pallet 10. The platform 12 is mounted on an arm 7 which is rotated about the axis 8 by means of a pneumatic ram 13. When the platform 12 is returned unloaded to its horizontal position a slab 6 which is located on an auxiliary platform 20 is pushed by a pneumatically operated pusher 21 on to the platform 12 for transfer to the pallet 10.
Patent GB-479262-A (GB)
Title: Improvements in tube and the like mills
IPC: B02C17/24
Filed: 1937-06-15
Abstract: 479,262. Ball or tube mills. KENNEDY, J. E. June 15, 1937, No. 16580. [Class 59] A horizontal tube mill mounted on trunnions is driven by a shaft connected to a member concentric with the trunnion opening and provided with feed openings leading through the trunnion and into the mill. As shown the trunnions 10, 11 of the mill are supported in semicircular bearings 12 covered by caps 13 having sides 131 enclosing the bearing. A circular. flanged plate 54 attached to the end of the trunnion rotates in an oil-bath at the bottom of the casing surrounding the bearing, the oil carried round by the plate being scraped off onto the top of the bearing by a scraper 55. The mill is driven by a motor M through a speed-reduction gear S and is connected to a head H on the mill trunnion through a loose coupling comprising a disc 30, Fig. 4, provided with ribs 31, 32 at rightangles to one another, the rib 32 engaging a slot 28<1> in the flange 28 of the drive shaft 29 and the rib 31 in a slot in the head H. The coupling is enclosed by a flexible casing 33 containing lubricant and holes 39 are bored in the flange 28 to supply oil to rib 32 and through an axial hole 40 to rib 31. The hub of the head H is connected to a surrounding flange 17, by bent ribs 23, Fig. 5, through which the driving torque is transmitted to the mill. The bent ribs form channels through which feed from a rotary plate feeder 48 is fed to the centre of the mill. The head is surrounded by a fixed casing 42 having a feed connection and an air connection for supplying air for carrying off the ground material.
Patent GB-197222-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B62M25/00
Filed: 1922-06-15
Abstract: 197,222. M³ller, W. June 15, 1922. Stop-gear operated by jolting or tilting of vehicle. -A conducting contact dement, such as a ball or a drop d of mercury is movable in a guidetube f, so that if the vehicle upsets the contact element moves to one end of the tube and short-circuits the ignition-circuit of the engine. The tube f may be of insulating or conducting material, in the former case a wire c passes through the tube, and the mercury contacts with this and with the end of wires b which project into the tube. The tube f may be constricted as at t at the bend in order to damp the movements of the mercury. In a modification the tube may be straight and the contact element may be a plunger or plungers normally maintained in The central position by springs.
Patent GB-1241393-A (GB)
Title: Particles containing phosphate and silicate
IPC: C11D3/06
Filed: 1969-03-31
Abstract: 1,241,393. Silicate/phosphate mixture. FMC CORP. 31 March, 1969 [24 April, 1968], No. 16661/69. Heading C1A. Strong, free flowing, completely soluble, dryappearing, granular particles comprising a mixture of a hydratable alkali metal phosphate and an alkali metal silicate, wherein the SiO 2 : phosphate mole ratio is at least 1:1 and which particles yield a pH of at least 10.5 in a 1% aqueous solution, is prepared by heating an alkali metal phosphate in particulate form to a temperature of 60-100 C.; gradually adding an aqueous, alkali metal silicate solution; maintaining the resulting mixture at a temperature of 60-100 C.; continually evaporating water from the mixture; controlling the rate of addition of the silicate solution so that the mixture is maintained in a particulate, dryappearing, granular form; containing the addition until the SiO 2 : phosphate molar ratio is at least 1:1 and recovering dry-appearing, granular particles. The preferred conditions are 60- 75 C., an alkali metal silicate having a SiO 2 / M 2 O weight ratio below about 2.4:1 where M = Na, or K, an alkali metal phosphate size range of - 20 + 100 mesh (U.S. Standard) producing particles with a - 10 + 80 mesh size range. The disclosed phosphates are sodium tripolyphosphate, Na 5 P 3 O 10 ; tetrasodium pyrophosphate, Na 4 P 2 O 7 ; trisodium orthophosphate, Na 3 PO 4 ; sodium trimetaphosphate, (NaPO 3 ) 3 ; sodium tetrametaphosphate (NaPO 3 ) 4 ; potassium tetrametaphosphate (KPo 3 ) 4  and potassium pyrophosphate, K 4 P 2 O 7 .
Patent GB-751818-A (GB)
Title: Improvements in electron sources
IPC: H01J21/08
Filed: 1954-06-04
Abstract: 751,818. Thermionic-cathode tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 4, 1954 [June 4, 1953], No. 16676/54. Class 39 (1). A rotating cathode 9 is surrounded by a screen 12 having a potential not greater than the cathode, and having a slot 11 or 11a facing the cathode. This may be a cylinder rotated by a conventional rotor and stator winding. A slot 1 mm. wide is suggested, with a cylinder of 2 cm. diameter and a speed of 50 r.p.s. Thus each point on the cathode is in front of the slot for 1/1000# sec. at a time, 50 times per second, so that the equivalent is obtained of continuous emission under conditions of pulsed emission, with higher permanent current in consequence. Since the cathode is rotating, a sliding contact 21 is provided. In order to avoid passing a high current through this sliding contact, the arrangement of Fig. 3 may be used. Here the sliding contact 21 merely serves to bring cathode 9 to the appropriate potential. The main cathode current passes through a fixed cathode 22 with heater 23, which is inside cathode cylinder 9, and negatively biased with respect to it. The latter is maintained at emission temperature by bombardment from the inner cathode 22. An independently biased grid 24 may be provided. The cathode is used in the travelling-wave tube more fully described in U.S.A. Specification 2,694,783.
Patent GB-1215592-A (GB)
Title: Polyenes
IPC: C08G75/02
Filed: 1967-07-26
Abstract: 1,215,592. Polyenes. W. R. GRACE & CO. 26 July, 1967 [26 July, 1966; 23 Feb., 1967], No. 16797/70. Divided out of 1,215,591. Heading C3R. Polyenes having a M.W. of 300 to 20,000 and a viscosity of 0 to 20,000 centipoises at 70‹ C., containing an average of two or more terminal groups of the formula wherein X is halogen, methyl or hydrogen and R is hydrogen, halogen, aryl, substituted aryl, aralkyl, substituted aralkyl, cycloalkyl, alkyl of 16 carbon atoms or substituted alkyl of 1 to 16 carbon atoms, and containing substantially no free isocyanate groups are prepared by reacting (a) a monoisocyanate of formula or respectively, X and R being as hereinbefore defined with (b) a polyol and/or polyamine containing no reactive unsaturation. The monoisocyanates are most suitably allyl or crotonyl monoisocyanates and are preferably reacted with a polyoxyalkylene polyol. The monoisocyanates may also be reacted with a polyethylene imine. In a typical example a nitrogencontaining tetrol was reacted with allyl isocyanate in the presence of dibutyl tin dilaurate .